In-Reply-To: <OFBD48F115.91DA34BD-ON88256908.0077B67F@microchip.com>

"John E. Andrews" <John.Andrews@MICROCHIP.COM> wrote:
> You're exactly right. The RB3 pin is only used for low voltage
> programming. While the chips come from the factory with this mode enabled,
> in case you want to use it as your first programming method, the ICD (and
> all other commercial programmers that I know of) use the more traditional
> 13v, programming method. So when you debug with the ICD its important to
> disable this mode in the configuration word unless you take the
> appropriate steps to prevent an inadvertent high on RB3, which will cause
> the device to stop running and go into programming mode.

I thought the connection from the ICD to RB3 was to make sure the PIC didn't
go into LVP mode when the ICD was trying to program it using the high
voltage mode.

Is this not in fact necessary?

Brian Gregory.
briang@cix.co.uk